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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


Lê modules and traces

Author: David B. Massey
Journal: Proc. Amer. Math. Soc. 134 (2006), 2049-2060
MSC (2000): Primary 32B15, 32C35, 32C18, 32B10
Published electronically: January 5, 2006
MathSciNet review: 2215774
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Abstract: We show how some of our recent results clarify the relationship between the Lê numbers and the cohomology of the Milnor fiber of a non-isolated hypersurface singularity. The Lê numbers are actually the ranks of the free Abelian groups--the Lê modules--appearing in a complex whose cohomology is that of the Milnor fiber. Moreover, the Milnor monodromy acts on the Lê module complex, and we describe the traces of these monodromy actions in terms of the topology of the critical locus.

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Additional Information

David B. Massey
Affiliation: Department of Mathematics, Northeastern University, Boston, Massachusetts 02115

PII: S 0002-9939(06)08208-6
Keywords: L\^e modules, L\^e numbers, L\^e cycles, monodromy, Milnor fiber, vanishing cycles
Received by editor(s): October 12, 2004
Received by editor(s) in revised form: February 13, 2005
Published electronically: January 5, 2006
Communicated by: Ronald A. Fintushel
Article copyright: © Copyright 2006 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.

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